.download {
  height: 45px;
}

.download ul li {
  float: left;
  height: 45px;
  background-color: #333333;
  text-align: center;
  line-height: 45px;
}

.download ul li:nth-child(1) {
  position: relative;
  width: 8%;
}  

.download ul li:nth-child(1) img {
  position: absolute;
  top: 50%;
  left: 25%;
  transform: translateY(-50%);
  width: 16px;
  vertical-align: middle;
}

.download ul li:nth-child(2) {
  position: relative;
  width: 15%;
}  

.download ul li:nth-child(2) img {
  position: absolute;
  top: 50%;
  left: 15%;
  transform: translateY(-50%);
  width: 35px;
  vertical-align: middle;
}

.download ul li:nth-child(3) {
  text-align: left;
  width: 40%;
}  

.download ul li:nth-child(3) span {
  position: relative;
  font-size: 12px;
  display: block;
}

.download ul li:nth-child(3) span em:nth-child(1) {
  position: absolute;
  top: -9px;
  color: #fff;
  font-weight: 500;
}

.download ul li:nth-child(3) span em:nth-child(2) {
  position: absolute;
  top: 9px;
  color: #999;
}

.download ul li:nth-child(4) {
  width: 37%;
  background-color: #F63515;
}  

.download ul li:nth-child(4) span {
  font-size: 15px;
  color: #fff;
}

.search {
  position: relative;
  height: 44px;
  /* 防止内外边距合并 */
  overflow: hidden;
  background-color: #c82519;
}

.search-btn {
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 44px;
}

.search-btn img {
  width: 20px;
  height: 18px;
  margin: 13px 0 0 15px;
}

.search-login {
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 44px;
  line-height: 44px;
}

.search-login span {
  font-size: 14px;
  margin: 10px 0;
  color: #fff;
}

.search-input {
  position: relative;
  height: 30px;
  background-color: #fff;
  margin: 7px 50px;
  border-radius: 25px;
}

.search-i-icon {
  position: absolute;
  top: 8px;
  left: 15px;
  width: 20px;
  height: 15px;
  background: url(../img/jd_logo_en@40_30.png) no-repeat;
  background-size: 20px 15px;
}

.search-i-zoom {
  position: absolute;
  top: 8px;
  left: 50px;
  width: 18px;
  height: 15px;
  /* 二倍精灵图, 等比缩小一半, 坐标也是原来的一半 */
  background: url(../img/jd-sprites@400_400.png) no-repeat -80px 0;
  background-size: 200px;
}

.search-i-icon::after {
  content: "";
  position: absolute;
  top: 0;
  right: -10px;
  display: block;
  width: 1px;
  height: 15px;
  background-color: #ccc;
}

.search-i-content {
  position: absolute;
  top: 4.2px;
  left: 50px;
  height: 15px;
  width: 100%;
}

.search-i-content input {
  width: 80%;
  border: 0;
  outline:none;
  font-size: 12px;
  color: #232326;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.slide {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.slide-bg {
  position: absolute;
  top: 0;
  left: -25%;
  z-index: -1;
  height: 7.25rem;
  width: 150%;
  background-image: linear-gradient(0deg, #f1503b, #c82519 50%);
  border-bottom-left-radius: 100%;
  border-bottom-right-radius: 100%;
}

.slide-list {
  position: relative;
  text-align: center;
}

.slide-list img{
  width: 90%;
  max-width: 700px;
  border-radius: 10px;
}

.slide-l-focus {
  position: absolute;
  bottom: 24px;
  left: 0;
  width: 100%;
  height: 5px;
}

.slide-l-focus span {
  display: inline-block;
  border-radius: 50%;
  background: hsla(0, 0%, 100%, .6);
  height: 5px;
  width: 5px;
  margin: 0 2px;
  opacity: 1;
}

.nav {
  width: 100%;
  height: 162px;
}

.nav ul li a {
  display: block;
  float: left;
  width: 20%;
  text-align: center;
}

.nav ul li a img {
  width: 40px;
  margin-top: 8px;
  vertical-align: top;
}

.nav ul li a span {
  display: block;
  font-size: 12px;
  margin-top: 4.8px;
}